Patent · US Active

Double hinge torsion bar

US8780570B2 · kind B2 · utility

15Cited by

51References

20Claims

0Family size

Assignee

Microsoft Corporation · US

Inventors

David D. Bohn · Fort Collins, US
Paul M. O'Brien · Spokane Valley, US
Christopher Fruhauf · San Anselmo, US

Key dates

Filing date	Feb 14, 2011
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Dec 12, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

In embodiments of a double hinge torsion bar, a portable device includes a first housing integrated with a display device, and a second housing movably coupled to the first housing. Double hinges attach to the first and second housings of the portable device, and the double hinges are operable to open and close the first and second housings relative to each other. A torsion bar movably couples the double hinges to open and close at approximately a same timing rate, which can prevent the double hinges from binding when the first and second housings are opened and closed relative to each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.